--- title: "Eray Gündoğmuş — Carna blog" description: "Articles by Eray Gündoğmuş, engineer at Carna, on AI English tutoring, CEFR levels, exam preparation and automated assessment." canonical: https://carna.ai/en/blog/author/eray-gundogmus/ lang: en --- [Authors](https://carna.ai/en/blog/author/) # Eray Gündoğmuş Software engineer, Carna Engineer behind Carna's AI tutoring and assessment platform Eray builds the Carna platform: the AI tutor, the automated speaking and writing assessment, and the reporting that schools and teachers work from. He writes about CEFR progression, exam preparation and what AI tutoring can and cannot do, from the side that builds it. - AI-assisted language learning - Automated speaking & writing assessment - CEFR framework - IELTS preparation - [X / Twitter](https://x.com/eraysw) - [github.com](https://github.com/eraygundogmus) ## Articles by Eray Gündoğmuş Learning guides ### [AI tutoring outperforms in-class active learning: what the Harvard study found](https://carna.ai/en/blog/ai-tutoring-outperforms-active-learning/) In a randomised trial at Harvard, students learned more from a carefully designed AI tutor than from an active learning class, in less time. Here is what the study did, why the tutor worked, what it does not prove, and what it means if you are learning English. 10 min read 28 Sept 2026 Learning guides ### [How to find a private English tutor online: a 7-step checklist](https://carna.ai/en/blog/how-to-find-an-english-tutor-online/) Where to look for an online English tutor, how to read a profile, what to test in a trial lesson, and how to tell after a month whether it is working. 6 min read 28 Sept 2026 Comparisons ### [How much do private English lessons cost? 1-on-1 prices in 2026](https://carna.ai/en/blog/private-english-lessons-cost/) Published one-to-one English lesson prices on the big platforms and in the US, what makes a tutor cost more, and what a year of lessons really adds up to. 6 min read 28 Sept 2026 Learning guides ### [What is a personal English tutor, and what do they actually do?](https://carna.ai/en/blog/what-does-a-personal-english-tutor-do/) A personal English tutor works with one learner and plans every lesson around that learner's level, goal and mistakes. Here is what they do, what a lesson looks like, and where an AI tutor fits. 7 min read 28 Sept 2026 Comparisons ### [The best AI English tutors in 2026, free and paid](https://carna.ai/en/blog/best-ai-english-tutor-2026/) Short answer: Carna for one tutor across all eight skills on a CEFR path, Speak or Praktika for conversation, ELSA Speak for pronunciation, Duolingo for a daily habit, Cambly for a human. The most free practice: Gliglish and TalkPal, ten minutes a day. 9 min read 20 May 2026 Learning guides ### [How to go from A0 to A1 in 30 days](https://carna.ai/en/blog/a0-to-a1-in-30-days/) Starting from zero feels overwhelming. This guide breaks the A0→A1 transition into a 30-day plan — what to focus on, how much time to spend, and the habits that actually work. 6 min read 15 May 2026 Comparisons ### [AI English tutor vs human tutor — which is right for you?](https://carna.ai/en/blog/ai-tutor-vs-human-tutor/) Both AI and human English tutors can improve your English. They do it differently, and the right choice depends on what you're trying to achieve and how you learn. 6 min read 5 May 2026 Learning guides ### [Why most English learners quit at B1 — and how to break through](https://carna.ai/en/blog/why-english-learners-quit-at-b1/) B1 is the most common sticking point in English learning. Learners reach functional communication and stop improving. Here's why it happens and what actually works to push through. 7 min read 28 Apr 2026 Learning guides ### [How to improve your English speaking confidence](https://carna.ai/en/blog/improve-english-speaking-confidence/) Speaking confidence is not the same as speaking ability. Many learners with solid grammar and vocabulary still freeze in real conversations. Here's how to fix the gap. 6 min read 20 Apr 2026 For educators ### [How AI marking gives English teachers time back](https://carna.ai/en/blog/ai-saves-english-teachers-time/) Marking essays and speaking exercises by hand is the largest single time cost in most English teachers' weeks. Here's what AI grading actually does — and what it doesn't replace. 6 min read 14 Apr 2026 Exam prep ### [How to predict your IELTS score before you take the exam](https://carna.ai/en/blog/predict-ielts-score-before-test-day/) Walking into the IELTS exam without a realistic score prediction is expensive. Here's how CEFR benchmarking and targeted practice give you a reliable indicator before test day. 5 min read 8 Apr 2026 In Carna for Schools ### The class, course by course. A class report in the teacher's app, cropped to Course success: every course the class took, ranked by its average score. [See Carna for Schools](https://carna.ai/en/schools/) Carna School London is a sample school; the courses and the scores are demo data. [All articles](https://carna.ai/en/blog/) ## Put it into practice. Carna teaches English across eight skills, A1 to C2. Schools and teams can see the app on a call; if you are learning on your own, join the early-access list for the personal tutor. [Join the early-access list](https://carna.app/individual-waitlist) [Book a demo](https://carna.ai/en/schools/#demo)